Cadillac 2013 Caddilac CTS Owner's Manual page 396

1. Wing Nut
2. Spare Tire
3. Jack
4. Subwoofer (If Equipped)
5. Wheel Wrench (Two-Piece
Shown, Three-Piece Similar)
6. Extension (If Equipped)
7. Cable
To access the spare tire and jacking
equipment:
1. Remove the spare tire cover.
2. Remove the subwoofer (4), if the
vehicle has one.
To remove the subwoofer:
2.1. Turn the nut (1)
counterclockwise to
remove.
2.2. Disconnect the
connector wire.
2.3. Pull the subwoofer (4) up to
remove it from the stow rod.
3. Remove the spare tire (2) and
place it next to the flat tire.
4. Remove the jack (3), wheel
wrench (5), and extension (6),
if the vehicle has one.
To remove the jack:
1. Retainer Nut
2. Jack Stowage Bracket
3. Jack
1. Turn the retainer nut (1)
counterclockwise to remove.
2. Remove the jack stowage
bracket (2).
3. Slide the jack (3) forward to
remove it from the floor storage
bracket.
1. Do a safety check before
proceeding. See
2. Use the wrench to loosen all of
the wheel nuts. Do not remove
them yet.